[reportlab-users] How to use graphics Drawing objects with pdfgen Canvas

[tim graber]

thanks.  that's what i needed to know.

--- Robin Becker <robin at reportlab.com> wrote:

> tim graber wrote:
> > In the graphics guide, I found this paragraph on
> using
> > a drawing object directly with Platypus or
> > pdfgen/canvas.  I have been trying to figure out
> how
> > to incorporate the graphics Drawing object
> directly
> > onto a pdfgen Canvas object.  Does anyone have any
> > experience with this?  Thanks.
> > 
> > "The PDF renderer has special "privileges" - a
> Drawing
> > object is also a Flowable and, hence, can be
> placed
> > directly in the story of any Platypus document, or
> > drawn directly on a Canvas with one line of code.
> In
> > addition, the PDF renderer has a utility function
> to
> > make a one-page PDF document quickly."
> > 
> > from reportlab.pdfgen import canvas
> > from reportlab.graphics.shapes import *
> > from reportlab.lib import colors
> > from reportlab.lib.units import inch
> > 
> > c = canvas.Canvas("hello.pdf")
> > c.translate(1*inch,1*inch)
> > d = Drawing(400, 200)
> > #d.add(Rect(50, 50, 300, 100,
> > fillColor=colors.yellow)) d.add(String(150,100,
> 'Hello
> > World', fontSize=18)) c.drawImage(d, inch, inch,
> 130,
> > 48)
> 
> The above is wrong as Drawings are not images. In
> practice you need to render a 
> drawing to a canvas. So inpractice you need two
> lines to render a drawing to a 
> canvas eg
> 
> from reportlab.graphics import renderPDF
> 
> renderPDF.draw(drawing, canvas, x, y,
> [showBoundary=True/False])
> 
> 
> set showBoundary=True to get a (red?) box round the
> drawing.
> -- 
> Robin Becker
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